Semiconductor device

a technology of semiconductor devices and circuits, applied in field-effect transistor reliability increase, pulse technique, instruments, etc., can solve the problem that the logic circuit cannot be returned to the state before the power supply stop, and achieve the effect of enhancing the yield

Active Publication Date: 2018-09-27
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0048]According to the first aspect to the fourth as...

Problems solved by technology

However, since in the PG, the power supply to the logic circuit becoming a target is stopped, a...

Method used

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Examples

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first embodiment

[0093]The present technology relates to a semiconductor device in which a plurality of non-volatile elements including a non-volatile element for redundancy are connected to a volatile logic circuit becoming a target of an NVPG through the same connection gate, thereby enhancing the yield at the time of manufacture.

[0094]FIG. 1 is a diagram depicting an example of a configuration of an embodiment of a semiconductor device to which the present technology is applied.

[0095]A semiconductor device 11 includes various kinds of electronic apparatuses each having a logic circuit, and devices with which these electronic apparatuses are loaded. Although, for example, the semiconductor device 11 is provided with a plurality of logic circuits or the like, in this example, only a part thereof is illustrated.

[0096]The semiconductor device 11 has a volatile logic circuit 21, a transistor 22, an MTJ (Magnetic Tunnel Junction) 23-1, an MTJ 23-2, an MTJ 24-1, an MTJ 24-2, a transistor 25, a control l...

second embodiment

[0176]Now, how the power consumption is suppressed is important in a mobile product and a wearable product including a smartphone. An LSI (Large-Scale Integration) such as a processor for controlling these products attributes to the large power consumption.

[0177]Then, a technique called PG (power gating) is known as one means for suppressing the power consumption of the LSI. A technique for stopping the supply of the power source to a block which is not operated of circuit blocks of the LSI, thereby suppressing the power consumption is known as the PG.

[0178]In addition, the power source supply control in units of smaller granularity, that is, in the units of smaller blocks, and in the units of shorter time is effective for suppressing the power consumption of the LSI. A technique which is capable of putting into practice at a flip flop level using a pair of non-volatile elements is also proposed as such a PG technique. For example, an example using the non-volatile element includes ...

third embodiment

[0367]Incidentally, WO2009 / 028298 mentioned in the second embodiment proposes the configuration in which the MTJs are added to each of the two storage nodes of the flip flop circuit (hereinafter referred to as the FF circuit) becoming the target of the NVPG through the selection transistor.

[0368]In this case, the configuration of one cell including the FF circuit, the MTJ, and the like of the non-volatile storage element, for example, is as depicted in FIG. 30.

[0369]In the example depicted in FIG. 30, a region R92 including an n-type well, and a region R93 including a p-type well are provided in a region R91 of one cell. In this example, an upper half of the region R91 in the figure is set as the region R92, and a lower half of the region R91 in the figure is set as the region R93. In a word, the region R91 is equally divided into the region R92 including the n-type well, and the region R93 including the p-type well.

[0370]An FF circuit 811 is provided on the left side of the region ...

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Abstract

The present technology relates to a semiconductor device which enables yield to be enhanced. A volatile logic circuit has a storage node, and stores inputted information. A plurality of non-volatile elements are connected to the storage node of the volatile logic circuit through the same connection gate, and control lines for control for these non-volatile elements are connected to the respective non-volatile elements, every non-volatile element. A plurality of non-volatile elements are connected to the volatile logic circuit through the same connection gate in such a way, thereby enabling the yield to be enhanced. The present technology can be applied to a semiconductor device.

Description

TECHNICAL FIELD[0001]The present technology relates to a semiconductor device, and more particularly to a semiconductor device for which yield can be enhanced.BACKGROUND ART[0002]Heretofore, for the purpose of enhancing the yield of the semiconductor devices, redundant relief has been carried out. For example, a technology with which a redundant cell having the same configuration as that of each of basic cells within a logic area is provided for the basic cells has been proposed as such a technology (for example, refer to PTL 1).[0003]In this technology, an input of a signal to the basic cell or the redundant cell is switched by an input selector. In addition, which of signals outputted from the basic cells and the redundant cell is to be outputted is switched by an output selector, thereby relieving a broken-down basic cell. That is to say, one redundant cell is connected to a plurality of basic cells arranged in an array. In the case where there is a defect in any of these basic c...

Claims

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Application Information

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IPC IPC(8): H01L27/22H01L27/24G11C14/00H03K19/003
CPCH01L27/228H01L27/2436G11C14/0081H03K19/00315H03K19/00392H01L27/1104H01L43/08H03K19/003H03K19/0948H03K19/17736H01L27/0617H01L27/0694H01L27/092H10B63/30H10B61/22H10B10/12H01L29/82H10N50/10
Inventor KANDA, YASUOYOKOYAMA, TAKASHI
Owner SONY CORP
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